How to Fix the PCB manufacturing Too Large Error in Altium: Process Details and Inspection Points When using Altium Designer to export Gerber files, you may occasionally receive an error indicating that the PCB file is too large to be exported. The same discipline applies to PCB manufacturing, where…

PCB Drill Files and Drill Drawing: Complete Manufacturing A drill package is only complete when the machine data and the visual reference agree. Designers spend hours on copper, mask and silkscreen, then export the drill layer last and never reopen it. That habit causes most drilling disputes at the fab…

FPC Panelization: Spacing, Tooling Edges and SMT Needs Flexible circuits rarely ship as single units. They are arranged on a panel, held by bridges, and separated after assembly. That arrangement decides how the panel behaves on the SMT line. Spacing, tooling edges, fiducials and bridge geometry all interact, and a…

PCB Countersunk Holes: Design and Process Guide A countersunk hole lets a screw head sit flush with the board surface. The feature looks simple on a drawing, yet it hides a second machining operation behind the drill. Designers who treat it as an ordinary hole often meet copper damage, loose…

PCB Back Drilling: Process, Benefits and Design Rules A plated through-hole via runs the full thickness of the board, even when the signal only needs the top two layers. The unused copper below the connection point becomes a stub, and that stub behaves like an open transmission line at high…

BGA PCB Surface Finish Risks and How to Prevent Defects Ball Grid Array packages place their solder balls underneath the component body. That layout packs many connections into a small footprint, but it also hides every joint after reflow. Visual inspection cannot confirm what happened under the package. The surface…

PCB Panelization for SMT Assembly: A Practical Guide Panelization turns several small boards into one manufacturing unit. SMT lines handle panels more reliably than loose, tiny boards. A good panel improves placement stability, conveyor handling, and print consistency. A poor panel creates warpage, edge damage, and depanelization scrap. This guide…

PCB Panelization for SMT Assembly: Design Rules Panelization decisions are usually made late, often after fabrication files are already released. That timing creates most of the problems. The panel is the object the SMT line actually handles, not the single board. Its size, rails, fiducials and breakaway points decide whether…

FPC Pad Adhesion: Design Methods to Prevent Lift-Off FPC pads carry both current and mechanical load. On a thin flexible substrate, that second job is harder than it looks. Soldering heat, wire pulls and repeated bending all push on a copper pad bonded to a soft dielectric. The pad can…

PCB Via vs Pad: Differences, Hole Tolerances & Design A via and a pad can both show a plated hole on the same board, yet they answer different questions. The via exists to carry a signal from one layer to another. The pad exists to hold a component lead or…